11851551384 has 32 divisors (see below), whose sum is σ = 29663262720. Its totient is φ = 3945932576.

The previous prime is 11851551311. The next prime is 11851551401. The reversal of 11851551384 is 48315515811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265392 + ... + 306815.

It is an arithmetic number, because the mean of its divisors is an integer number (926976960).

Almost surely, 2^11851551384 is an apocalyptic number.

It is an amenable number.

11851551384 is an abundant number, since it is smaller than the sum of its proper divisors (17811711336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11851551384 is a wasteful number, since it uses less digits than its factorization.

11851551384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573079 (or 573075 counting only the distinct ones).

The product of its digits is 96000, while the sum is 42.

The spelling of 11851551384 in words is "eleven billion, eight hundred fifty-one million, five hundred fifty-one thousand, three hundred eighty-four".